baber/WOPTO huggingface dataset:
Patent GB-304164-A (GB)
Title: Improvements in or relating to apparatus for displaying optically projected images
IPC: G03B21/62
Filed: 1927-10-11
Abstract: 304,164. Kamide, J. Oct. 11, 1927. Optical - projection apparatus; projection screens. - A casing a, having an aperture b for the passage of light from a projector c, carries at the front end a frosted-glass or like screen d, and a screen e of straight vertical section and outwardly concave horizontal section. The screen e may be of silk, gauze or other fabric, and its curvature may vary in accordance with the placing of the spectators. The inner surfaces of the casing may be painted black or be lined with black fabric.
Patent GB-172754-A (GB)
Title: Process for the vulcanisation of materials related to rubber
IPC: C08J3/24
Filed: 1920-09-22
Abstract: 172,754. Peachey, S. J., and Skipsey, A. Sept. 22, 1920. Addition to 129,826, Vulcanizing by cold methods.-Balata and gutta-percha are vulcanized by the methods de scribed in the parent Specification and in Specification 162,429, i.e. by treatment with sulphur dioxide and hydrogen sulphide. The balata &c. may be in the solid form or in solution, and the treatment may take place at atmospheric or higher pressure. According to examples, sheets of balata of 0.2-0.5 mm. thickness are exposed to an atmosphere of sulphur dioxide for ten minutes and then to an atmosphere of hydrogen sulphide for thirty minutes; or 15 ccm. of a ten per cent solution of balata or gutta-percha in carbon disulphide saturated with hydrogen sulphide is mixed with 2.2 ccm. of a solution of sulphur dioxide in benzene of concentration 2.4 grm. gas in 100 ccm. of solvent. The solution gradually sets to a jelly from which the solvent may be evaporated.
Patent GB-957219-A (GB)
Title: New steroid compounds and processes for their preparation
IPC: C07J71/00
Filed: 1961-07-26
Abstract: The invention comprises 11b , 18-epoxy-16a -methyl-20-oxygeno-pregnan-3-one derivatives having the general formula: <FORM:0957219/C2/1> in which both the X and Y are hydrogen or together constitute a 4(5) double bond and the oxygenated grouping Z at the 20-position is =H(O.CO.H), =H(OH) or =O and processes for the preparation thereof by reducing and simultaneously saponifying a 3a -acyloxy-18,20b -epoxy-16a -methyl-5b -pregnan-11-one having the general formula: <FORM:0957219/C2/2> (where Ac represent an acyl radical derived from an organic carboxylic acid) by treatment with an alkaline reducing agent so as to yield 18, 20b -epoxy-3a , 11b -dihydroxy-16a -methyl-5b -pregnane and selectively oxidizing the 3a -hydroxyl group of the latter so as to yield 18, 20b -epoxy-11b -hydroxy-16a -methyl-5b -pregnan-3-one and then treating the latter with formic acid so as to effect migration of the epoxy bridge to the 11b ,18-position and esterifying the hydroxyl group thus created at the 20-position thus yielding the desired 11b , 18-epoxy - 20b  - formyloxy - 16a -methyl-5b -pregnan-3-one. A D 4 double bond may be introduced into the product by bromination in 4-position followed by dehydrobromination. The 20-formyloxy group may be hydrolysed to form a 20-hydroxy group which on oxidation gives a 20-keto group. The starting 3a -acetoxy-18, 20b -epoxy-16a -methyl-5b -pregnan-11-one is obtained by reducing at 20-position 3a -acetoxy-16a -methyl-5b -pregnane-11, 20-dione and treating the 20-hydroxy compound thus obtained with lead tetracetate.  Specifications 903,808, 957,220 and 957,221 are referred to.
Patent GB-481205-A (GB)
Title: Improvements in cooling safes for food
IPC: F25D23/06
Filed: 1936-10-06
Abstract: 481,205. Refrigerators. CAUSTON, T. H. Oct. 6, 1936, No. 27084. [Class 29] A food safe cooled by evaporation of water from porous walls comprises side, back and top members A, Fig. 1, of separate pottery tiles or like porous pieces secured together in a disconnectible manner by bolts passing through holes at the top and rear bottom corners of the sides, and a metal door E, Fig. 2, hinged to a metal strip F secured by bolts to the front edge of a top tile, which rests on the top bolts connecting the sides. The door is secured closed by clips having limbs slidable in holes in the front bottom corners of the side tiles, and the assembled safe stands on a false metal bottom of a metal water tray.
Patent GB-893994-A (GB)
Title: Temperature-controlled two-stage oven
IPC: G05D23/24
Filed: 1959-08-07
Abstract: 893,994. Automatic temperature-control systems. COLLINS RADIO CO. Aug. 7, 1959 [Jan. 2, 1959], No. 27107/59. Class 38 (4). [Also in Groups XI and XIII] In an automatic temperature-control system for a two-stage oven, comprising an inner oven having a first heater element surrounded by an outer oven having a second heater element, energy is supplied to the heater elements in a constant ratio. As shown, an inner oven heating element 21 and an outer oven heating element 15<SP>111</SP> are connected in parallel and supplied with alternating current from a power control circuit 32<SP>11</SP> comprising an amplifier oscillator. The element 21 is arranged as a bridge network having low temperature coefficient resistors 22, 23 and high temperature coefficient resistors 24, 25. The out-of-balance alternating voltage across the bridge, through a rectifier and filter 40, controls the output of the power control circuit so as to maintain the temperature of the inner oven substantially constant. In a modification, the heating elements are connected in series. In another embodiment, the power-control circuit is responsive to the output of a sensing element within the inner oven and the heating elements each comprise a single resistor.
Patent GB-610830-A (GB)
Title: Improvements in or relating to valve diaphragm assembly
IPC: F16K17/08
Filed: 1945-10-17
Abstract: 610,830. Leakage preventing in valves. THOMPSON PRODUCTS, Inc. Oct. 17, 1945, No. 27159. Convention date, Oct. 19, 1944. [Class 135] [Also in Group XXVI] A relief valve assembly of the kind described in Specification 553,150 and primarily intended for use in aircraft fuel pumps, has a diaphragm assembly interchangeable with that described in the above Specification. As shown, a nylon reinforced synthetic rubber diaphragm member 32, Fig. 3, of, e.g. polymerized chloroprene and stated to maintain its flexibility at low subzero temperatures, is formed with a thin tubular portion 32a having at one end thereof a bead 32b and at the other end an outwardly flared portion 32c terminating in a thickened flange 32d. The diaphragm fits over a cup member 31 and is located thereon so that when the flange 32d is clamped between the casing parts 10, 11, Fig. 1, and the bottom of the cup rests on the relief valve 15, the flared portion 32c bulges upwards. A metal retaining ring 33 formed with a bulge 33c is positioned on the diaphragm and the cup member spun outwardly to prevent axial movement between it and the diaphragm. Specification 552,801, [Group XXVI] also is referred to.
Patent GB-190573-A (GB)
Title: Improvements in or relating to means for fastening bags, trunks or the like
IPC: A45C13/10
Filed: 1921-10-13
Abstract: 190,573. Cole, R. C. Oct. 13, 1921. Fastenings for bags, trunks, &c.-A fastening for bags, cases, and like articles, comprising a pair of engaging members, one of which is attached by two resilient strips and can be detachably connected to existing bags &c. and used as a main or auxiliary fastening. As applied to an attachÚ case, a ring a is resiliently secured to the handle rings e by the snap hooks d and springs b. The ring a is engaged over a projection on a flange k of the lid j of the case. This projection may be a stamped-up tongue h on a plate i secured to the flange k of the lid by bifurcated rivets l, or may be a notched stud with a screwthreaded shank passed through a hole in the lid flange and secured by a nut. The plate i may be secured by side projections passed through holes in the flange k and bent over inside, instead of in rivets l. The ring a may be bent into two parts at right-angles to each other so that it can engage a stud on the lid itself instead of on the flange k. The springs b may be replaced by any resilient strips.
Patent GB-1220536-A (GB)
Title: Compositions for coating paper
Inventor: BRUTER BORIS
IPC: D21H19/58
Filed: 1969-05-29
Abstract: 1,220,536. Butadiene - styrene - allyl alcohol copolymers. PRODUITS CHIMIQUES PECHINEY - SAINT - GOBAIN. 29 May, 1969 [30 May, 1968], No. 27213/69. Heading C3P. [Also in Divisions B1-B2] A copolymer is prepared by emulsion polymerizing a mixture of 0À5-5% by wt. of allyl alcohol, 25-50% by weight of butadiene and 49À5-74À5% by weight of styrene.
Patent GB-154777-A (GB)
Title: Improvements in the construction of portable buildings of wood and like materials
IPC: E04B1/10
Filed: 1919-11-06
Abstract: 154,777. Grocott, A. J. Nov. 6, 1919. Portable buildings. -Portable wooden or like buildings composed of standardized sections or units have the wall panels made with bottom recesses to receive the floor panels a which are cut away at the corners, as shown in Fig. 4, to fit in the recesses. The roof sections fit on the wall sections as shown in Fig. 7, and have fascias n and eaves-boards o. Door frames j may be fitted to the end panels, and to the gable ends, the latter finishing flush with the roof. Fig. 5 shows the jointing of the wall section c with the gable end section c'. The whole may be weatherboarded, and tongued-and-grooved, and asbestos, compressed or vulcanized fibre, &c. may be used. The roof may be covered with felt, corrugated iron, &c. The frames may be secured together by bolts, coach screws, or other fastening capable of allowing easy connexion and disconnexion of the parts.
Patent GB-483014-A (GB)
Title: Improvements in or relating to devices for compensating for the shrinkage of films
IPC: G03B27/10
Filed: 1936-10-08
Abstract: 483,014. Photographic contact-printing apparatus. KLANGFILM GES. Oct. 8, 1936, No. 27345. Convention date, Oct. 16, 1935. [Class 98 (ii)] A constant feed of film in spite of film shrinkage is obtained by forming a loop on both sides of the film in contact with a smooth driving roller so that the variation in length of one side of the loop due to shrinkage, affects the curvature of the film at the driving point, and varies the amount of film fed forward. A negative film 14 to be copied is led from a drum 1 over a toothed roller 5, between a driven roller 19 and a pressure roller 10, through braking rollers 11, 12 and again over the toothed roller 5 to the take-up drum 2. The positive film 13 is led from the drum 2 over rollers 5, 17, 16, 19, 15 and 18 to the drum 4. The exposure takes place at the place 21. A loop A, B is formed in the film 14 owing to the presence of a braking point 26. When shrinkage occurs in the film, the feed at the point 25 is in excess of that fed at the sprockets 4, and the loops A, B tend to decrease and increase respectively. This increases the curvature of the film at the point 25 whereby less film is fed forward The necessary positions of the rollers 10, 11, 12 are defined.
Patent GB-635383-A (GB)
Title: Improvements in or relating to telephone exchange systems
IPC: H04M15/08
Filed: 1947-10-13
Abstract: 635,383. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd., ORMROD, D. H., and WILSON, M. T. Oct. 13, 1947, No. 27405. [Class 40 (iv)] In an automatic telephone exchange discrimination between a metering signal and another signal applied to the metering wire is effected by connecting a group of subscribers' meters M11, M12 ... M40 ... , each of which is in series with an individual rectifier, in multiple to a first common relay SG which is operable by both signals; connecting individual contacts which are provided on each meter and which are closed when the meter is operated in multiple to a second common relay BG; and providing a third relay ST operable over a front SG and a back BG contact. The third relay ST is therefore energized only if SG is operated while BG is not, and thus responds only to the signal other than the metering signal. The operation of ST in this manner is stated to be of particular application for initiating a line identification operation. If a metering signal is received over another line while ST is up, BG responds but ST holds over its second winding until the function initiated by its operation is completed. Specification 602,928 is referred to.
Patent GB-1398777-A (GB)
Title: Terminal board for use with a flat cable electrical wiring system
IPC: H01R4/46
Filed: 1972-06-12
Abstract: 1398777 Tape cable connectors LOCKHEED AIRCRAFT CORP 12 June 1972 27439/72 Heading H2E A connector for tape cables 12, 14, 16, 18 comprises an insulating board 34 with terminal pins 36, the cable conductors each being fitted with a respective terminal, which may be an eyelet 26, 32, located over a respective pin 36, the latter being mounted on the board 34 in groups 36a, 36b, 36c, 36d corresponding to the positions of the conductor terminals. A programmed circuit board 44 is provided with apertured terminal pads 48 or sockets which mate with the pins 36 to interconnect selected pads 48 by means of printed circuit conductors 50. A compression pad 54 is placed on the circuit board 44 with the pins 36 projecting into terminal sockets 56 in the pad. Overlying the pad 54 are a retainer plate 58 and a cover plate 62, retaining screws 60 acting between the cover plate and board 34. Each pin 35 comprises a stem 40 surrounded at its base by a flange 42. A further embodiment, (Fig. 3, not shown), shows a box (408) fitted with a lid (410) having openings (432) aligned with the sockets 56 and adapted to receive the pins (426) of a programmed plug (420), the pins being selectively interconnected by circuit means (428) within the plug, such as jumper wires.
Patent GB-782231-A (GB)
Title: Improvements in and relating to volumetric diaphragm pumps
IPC: F04B43/02
Filed: 1955-09-27
Abstract: 782,231. Rotary pumps. REGIE NATIONALE DES USINES RENAULT. Sept. 27, 1955 [Oct. 14, 1954], No. 27537/55. Class 110 (2). A rotary pump for delivering variable volumes of petrol to an engine comprises a flexible diaphragm 1 held between the flat surface of a member 2 and a member 4 by a ring 14 seated in a housing 25. From arcuate elements 3, bolted to the ring 14, extend radially pressure members 5 which are adjustably supported by the enlarged end 7 of a spindle 22 so that the distance between the members 5 and the surface of member 2 can be varied to control the output of the pump. Four inlet pipes 11 and four delivery pipes 12 lead through the member 2. The member 4 has four openings, each of which is aligned with two pressure members 5, which are of the same thickness as the member 4. The support 7 has an extension 19 slidable in a sleeve 17 mounted in the member 2 and bears against a leaf-spring 20 mounted on adjustable supports 21. The spindle 22 passes through the main pump shaft 23, which is mounted in tapered roller bearings 24 in the housing 25 fixed to the engine. On the shaft 23, a ballbearing 28 mounted in a seating 27 oblique to the main axis of the shaft has its inner ring cut away to clear the support 7. The outer ring has a chamfered surface 30 lying on a cone whose apex coincides with the intersection of the main axis and the surface A, A<SP>1</SP> of the member 4. The axis of the seating 27 also passes through this point of intersection. On the shaft is a helical pinion 31 in driving engagement with a pinion 32. The housing 25 is closed by a casing 35 securing a sealing diaphragm 36 surrounding the spindle 22. A metering diaphragm 39 separates the casing 35 from an outer casing 40 and passes between a plate 41 resting against the spindle 22 and a plate 42 resting on a spring 51, the plates 41, 42 being bolted to the diaphragm 39. A conduit 49, which connects the outer casing to the atmosphere, may also be connected to the inlet manifold for the engine fuel mixture upstream of the air-regulating throttle, while the casing 35 is connected by a pipe 50 with the inlet manifold downstream of the throttle. In operation, the inlet pipes are connected to a conventional feed pump with a delivery pressure of about 1 atmosphere, while the delivery pipes are connected to the engine injectors. On starting the engine, a negative pressure develops in casing 35, which changes the position of support 7 and increases the flexion of the spring 20 and the lift of the pressure members 5 is reduced so that the feed pump cannot deliver at full load. Petrol entering the pump moves the diaphragm 1, thus pressing the members 5 against the support 7 and as the shaft 23 rotates the chamfer 30 presses on each member 5 in succession driving the petiol into the pipes 12. As the throttle opens the negative pressure in pipe 50 diminishes and the delivery of the pump increases. Specification 682,225 is referred to.
Patent GB-264271-A (GB)
Title: Improvements in printing machines
IPC: B41F3/58
Filed: 1925-11-03
Abstract: 264,271. Waite, F., and Waite & Saville, Ltd. Nov. 3, 1925. Bed-reciprocating apparatus. - In printing- machines in which the bed is reciprocated by crank-mechanism, cam-actuated means are provided to vary the action of the crank-mechanism so as to cause the bed to move in unison, during the printing operation, with the uniformly revolving cylinder. As applied to a machine in which a crank-pin 8, Fig. 1, operates a connecting-rod 7 which reciprocates a gear-wheel or pair of sectors 3, 3a over a rack 5 and reciprocates the bed at twice the speed of reciprocation of the sectors 3, 3a by the engagement of the upper sector 3 with a rack 4 on the bed, the rack 5, instead of being stationary, is given a reciprocating motion by a lever 14 operated by a revolving cam 15 on the shaft 10<a> of the crank-pin 8. This crank-pin 8 is carried by two coaxial gear wheels 9a. The rack 5 is adjustably connected to the lever 14, and is fitted with anti-friction rollers guided by bearings 6 which can be raised or lowered to keep the rack in mesh with the gear 3. In a modification, Fig. 5, the bed is reciprocated by a link 19 and lever 18 operated by a crank-pin 8 and rod 7, and the motion given to the bed is modified by mounting the pivot 18a of the lever 18 on a lever 16a which is oscillated by a cam 15. To ensure correct register of the cylinder and bed should the cam parts wear, a sector gear 31 driven from gear 9a engages a rack on the bed during the printing-operation, the impression cylinder 34 being driven from the gear 9a.
Patent GB-943699-A (GB)
Title: Improvements relating to hose suspender fittings
Inventor: KERWIN JOSEPH
IPC: A41F3/00
Filed: 1961-07-29
Abstract: 943,699. Hose suspender fittings. NEWEY BROS. Ltd. Oct. 29, 1962 [July 29, 1961], No. 27621/61. Addition to 790,258 and improved upon by 905,272. Heading E2B. In a hose suspender as described in the parent Specification the strip of tape is made of a synthetic resinous material and secured to the stud by adhesive or welding, or may be moulded in one piece therewith.
Patent GB-788125-A (GB)
Title: Improvements in and relating to refractory alloys
IPC: C22C19/07
Filed: 1955-09-28
Abstract: An alloy for high temperature use has a composition within the following range, in which the proportions are atomic percentages. Ni 25-35, Co 35-40, Cr 20-25, Ti 4-7, C 0.5-1.5, one or more of W, Mo, Nb, Ta 1.0-3.5, Fe the balance if any, O and N, present as impurities, should not exceed 0.002 and 0.0005 per cent by weight respectively.  In a preferred heat treatment the alloy is solution treated at 2150 DEG F. and aged at 1650 DEG F.  Specification 510,154 is referred to.
Patent GB-296580-A (GB)
Title: Improvements in adjustable or folding chairs
IPC: A47C4/40
Filed: 1927-10-19
Abstract: 296,580. Bernasconi, F. Oct. 19, 1927. Rocking and folding seats; seat bottoms; rests, arm, and foot. - In a chair of the type comprising a pair of crossed frames a, b, which are not pivoted or otherwise connected where they cross, the frames are connected by two pairs of helical springs q, q<1>, each spring connecting the lower end one frame to a point midway of the other frame or approximately where the two frames cross each other. The frames a, b are connected at their lower ends by hinged frames c. The fabric band e is attached at one end to a hinged back m, passed over transverse bars n, o and is attached to a hinged foot rest k, the bars n, o forming parts of the frame b and foot rest k respectively. The band e is connected to a transverse bar at the upper end of the frame a by springs l. A hinged foot rest extension k' may be provided. Stops p limit the movement of the back m. The arm rests z are pivoted to the frame m and supported by uprights r preferably telescopic, pivoted to the frame a and to the arm rests.
Patent GB-1512573-A (GB)
Title: Pressure-sensitive adhesive compositions
IPC: C08L57/02
Filed: 1975-07-01
Abstract: 1512573 Pressure sensitive adhesive coatings NIPPON OIL CO Ltd 1 July 1975 [2 July 1974] 27752/75 Heading B2E [Also in Division C3]  Polyester film or cellulose sheet is coated with a pressure sensitive adhesive composition comprising dissolved in toluene styrene-butadiene rubber, an aromatic hydrocarbon resin formed by polymerisation of a thermally cracked (140-220‹ C B.P.) petroleum fraction and optionally, natural rubber. Other rubbers may be included and many are specified.
Patent GB-302007-A (GB)
Title: Washing apparatus
IPC: D06F39/00
Filed: 1927-10-19
Abstract: 302,007. Lagerbõck, P. G. Oct. 19, 1927. Washing-machines.-The articles to be washed are placed in a perforated annular member 3 which is carried by an inverted cup-shaped member 5. Steam from a generator 1 rises through perforations in a plate 8 in the pipe 2 and raises the member 5 until a stop 22 carried by the stem 9 of a valve disc 7 contacts with the underside of the plate 8. Steam is thereupon admitted through a chamber 6 and passages 10 to the tank 4 so that the resulting diminution of pressure causes the member 5 to fall. A disc 14 secured to the member 3 acts as a brake. A stationary pressure plate 16 is provided.
Patent GB-663646-A (GB)
Title: Improvements relating to couplings for pipes having flanged ends
IPC: F16L23/06
Filed: 1948-10-26
Abstract: 663,646. Pipe couplings. BRITISH TANKER CO., Ltd., HUTCHISON, W. M., and HOPKINS, K. W. Nov. 25, 1949 [Oct. 26, 1948 ; Nov. 18, 1949], Nos. 27848/48 and 29561/49. Class 99 (i) [Also in Group XXV] Two or more arcuate channel-section members 10, 11 having inclined inner walls are pivotally connected together and embrace the flanges of pipes to be coupled, and quick-release means connect and draw together the free ends of the couplings so that clamping pressure is exerted to press the flanges together. The means may comprise a roller 18 eccentrically pivoted on a pair of links 20 connected to one free end of the coupling and a handle 24 to rotate the roller when engaged on a seating 22 of the other free end of the coupling. In a modification, the members are connected by pairs of links to form a flexible chain and the means comprise a bolt pivoted to one free end of the coupling and a lever having rounded forked ends that embrace a nut engageable with the bolt and co-operate with a seating on the other free end of the coupling so that a fine adjustment of the clamping pressure is obtained. Specifications 402,490 and 412,186 are referred to.